西门子二通调节阀VVF53..和三通调节阀VXF53,PN25属于长行程阀门系列·介质温度在-20…220°C的高性能阀门·球墨铸铁EN-GJS-400-18-LT阀体·PN25·DN15…150·kvs0.16…400m3/h·法兰类型21,法兰设计为B·行程≤DN5020MM；＞DN6540MM·与SAX..或SKD..,SKB..,SKC..执行器组合使用二通阀VVF43..可用于液体和蒸汽，但介质不同，安装方向不同；三通阀VXF43..只能用于液体，可用于合流或分流。用途用于锅炉,区域供热和制冷设备,冷却塔,加热机组,和空调机组中作为控制或截止阀门.适用用于闭式或开式管路系。型号两通VVF53..VVF53.15-0.16VVF53.15-0.2VVF53.15-0.25VVF53.15-0.32VVF53.15-0.4VVF53.15-0.5VVF53.15-0.63VVF53.15-0.8VVF53.15-1VVF53.15-1.25VVF53.15-1.6VVF53.15-2VVF53.15-2.5VVF53.15-3.2VVF53.15-4VVF53.20-6.3VVF53.25-5VVF53.25-6.3VVF53.25-8VVF53.25-10VVF53.32-16VVF53.40-12.5VVF53.40-16VVF53.40-20VVF53.40-25VVF53.50-31.5VVF53.50-40VVF53.65-63VVF53.80-100VVF53.100-160VVF53.125-250VVF53.150-400型号说明：VVF53（阀门系列）.80（阀门口径）-100（阀门流量Kvs）三通VXF53..VXF53.15-1.6VXF53.15-2.5VXF53.15-4VXF53.20-6.3VXF53.25-6.3VXF53.25-10VXF53.32-16VXF53.40-16VXF53.40-25VXF53.50-40VXF53.65-63VXF53.80-100VXF53.100-160VXF53.125-250VXF53.150-400型号说明：VXF53（阀门系列）.80（阀门口径）-100（阀门流量Kvs）维护本品免维护在进行阀门或执行器维修前:如有必要,需拆除电气连线.·停止水泵并切断电源·关闭截止阀·释放管道系统中的压力并等待管道完全冷却尺寸两通VVF53..三通VXF53..)